Portable power-driven timber and log sawing machine



U. S. DILL Dec. 16, 1947.

PORTABLE POWER-DRIVEN TIMBER AND "LOG SAWING MACHINE Filed May 13, 1944 3 Sheets-Sheet 1 mN H l I o l v 0 N 8 a iT w I m'vntar J Attorney UL/iwo 6. 0/44,

Dec. 16, 1947. u s, D|LL 2,432,562

PORTABLE POWER-DRIVEN TIMBER AND LOG SAWING MACHINE 3 Sheets-Sheet 2 Filed May 13, 1944 Inventor Um/vo .0. D/LL,

u. s. cm.

Dec. 16, 1947.

PORTABLE POWER-DRIVEN TIMBER AND LOG SAWING MACHINE Filed May 13, 1944 3 Sheets-Sheet 5 I n ventor [/Z/M/D \5. D/LL,

\ By aadfiawayziM Patented Dec. 16, 1947 PORTABLE POWER-DRIVEN TIMBER AND LOG SAWING MACHINE Uland S. Dill, Twin Falls, Idaho Application May 13, 1944, Serial No. 535,482

2 Claims. 1

The present invention relates to new and useful improvements in timber sawing machines, and has for its primary object to provide, in a manner as hereinafter set forth, a portable, power-driven device of this character which may be readily used for felling trees and for sawing logs regardless of the position thereof on the ground.

Another very important object of the invention is to provide a portable, power driven timbersawing machine of the aforementioned character which may be used by a single operator.

Other objects of the invention are to provide a sawing machine of the character described which will be comparatively simple in construction, strong, durable, highly efficient and reliable in use, compact, light in weight and which may be manufactured at low cost.

All of the foregoing, and still further objects and advantages of the invention, will become apparent from a study of the following specification, taken in connection with the accompanying drawing wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure 1 is a top plan view of a sawing machine constructed in accordance with the present invention.

Figure 2 is a view in side elevation thereof.

Figure 3 is a plan view of an intermediate portion of the machine with a portion of the gear case broken away in section.

Figure 4 is a view in longitudinal section through an intermediate portion of the machine, taken substantially on the line 4-4 of Figure 1.

Figure 5 is a view in transverse section, taken substantially on the line 5-5 of Figure 4.

Figure 6 is a view in transverse section, taken substantially on the line 6-6 of Figure 2.

Figure 7 is a view in transverse section, taken substantially on the line 1-1 of Figure 2.

Figure 8 is a view in side elevation, showing the machine in use for cutting a log.

Figure 9 is a side elevational view, showing the machine sawing upwardly on a log.

Referring now to the drawings in detail, it will be seen that reference character I designates a tubular metallic housing of suitable length and 1 diameter. On the forward end of the tubular housing I is a substantially flat, circular case 2. A shaft 3 is journaled centrally in the case 2 and projects from the removable access plate 4 thereof. Projecting forwardly from the periphery of the case 2 is a spike 5 which is aligned with the tubular housing I. When the machine is being used for felling trees, the spike 5 is adapted to be driven into the stump 6 (see Fig. 2) for supporting the forward end of the machine thereon.

The tubular housing I is Journaled for rotary adjustment in bearings 1 on the lower portions of substantially V-shaped brackets 8. The brackets 8 depend from a frame 9 having mounted thereon a suitable engine Ill. The frame 9 includes a pair of handles H. Mounted on the handles II is an adjustable supporting stand 12 for the rear end of the machine. A shaft I3 is journaled in the tubular housing I. The engine in drives the shaft l3 through a variable speed transmission [4 and a belt and pulley connection I5. Beveled gears I6 (Figure 3) of any desired ratio operatively connect theshaft [3 to the shaft 3 in the case 2.

Fixed on the outer end portion of the shaft 3 is an arm Il. Also fixed on the shaft 3, between the arm I! and the plate 4, is an eccentric 18. A swinging guide frame I!) is provided, on its rear end, with a strap 20 (Figure 4) which is Journaled on the eccentric l8. An arcuate steadyrest 2i is provided on the plate 4 of the gear case 2 for the guide frame I9. A carriage 22 is mounted for reciprocation on the frame IS. A saw blade 23 has its rear end portion firmly secured in position on the carriage 22. The arm i1 is operatively connected to the blade 23 by a pltman-24.

Fixed transversely on the forward end of the frame I9 is an internally threaded sleeve 25. The sleeve 25 is adapted to receive, at either end,

a threaded, reversible handle 26 for feeding the blade 23 toward the work. Pivotally mounted on the frame i9 is a removable guide 21 which is to be used for supporting thin gauge saws in a substantially horizontal plane.

Reinforcing or strengthening webs 28 are provided between the tubular housing I and the gear case 2. One of the webs 28 is apertured to accommodate a hook 29 on one end of a chain 30. The other end portion of the chain 30 is detachably and adjustably connected to a tightening lever 3| on the other web 28. This end of the chain 30 is provided with a hook 32.

It is thought that the operation of the machine as thus far described will be readily apparent from a consideration of the foregoing. Briefly, the spike 5 is caused to penetrate the stump 6 and the stand i2 is adjusted for supporting the rear end of the machine. The engine l0 drives the shaft 3 for reciprocating the blade 23 on the guide frame I9. As the blade 23 is reciprocated, it is caused to rock by the eccentric i8. Thus, a uawml, compqllrid. motion is had. The blade 23 drawings.

is fed into the tree by the operator grasping the handle 26. The chain 30 is looped around the stump 6 and connected to the lever 3| and tightened, as suggested in dotted lines in Figure 1 of the drawings. The chain 30 and the hand lever 3! may be utilized to force the spike 5 into the stump and for anchoring said spike therein.

When the machine is to be used for sawing logs with the blade passing downwardly through the work, the tubular housing I is rotated in the bearings 'I' for positioning the teeth of the blade 23 downwardly and swinging the handle 26 upwardly. The hook 32 is passed forwardly over the log, as at 35 (Figure 8), and engaged therewith. The other end portion of the chain 30, which carries the hook 29, is then connected to the lever 3|. The chain 30 is then tightened through the medium of the lever 31 for causing the hook 32 to bite into the log 35. This operation drives the spike 5 into the log 35 and anchors it therein. Also, the chain 30 now functions as means for supporting the intermediate portion of the apparatus. A longitudinally extensible brace 36 is pivotally mounted on the case 2 and engageable with the log 35 for assisting in retaining the machine at any desired angle relative to said log. As the saw'23 is actuated, said saw feeds downwardly through the log 35.

When it is necessary to cut upwardly through the log 35, the tubular housing I is rotated in the bearings 1 for positioning the teeth'of the blades 23 upwardly, as seen in Figure 9 of the The handle 26 is reversed in the sleeve 25 to facilitate pulling the blade 23 upwardly through the log as the cut is made.

It is believed that the many advantages of a timber-sawing machine constructed in accordance with the present invention will be readily understood, and-although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

1. A timber saw including in combination a support comprising a circular casing, a spike projecting radially from said circular casing, a tubular casing extending radially from the circular casing in diametrically opposed relation with the spike, a pair of spaced brackets supporting the tubular casing for rotation about its longitudinal axis, handles carried by the upper ends of the brackets and extending parallel with and beyond the end of the tubular casing opposite the circular casing, a vertically adjustable support connected to the handles, a drive shaft extending through the tubular casing, a driven shaft mounted in the circular casing to rotate about an axis perpendicular to that of the drive shaft, drive means between the drive and driven shafts, said driven shaft extending through one side of the circular casing, an eccentric on the driven shaft, an arcuate guide on the circular casing, a frame connected to the eccentric. and adapted to be supported on the arcuate guide, a crank on the driven shaft, 2. saw carriage slidable on the frame, a connecting rod connecting the crank with the saw carriage, a power unit supported on the brackets and means to establish driving connection between the power unit and the drive shaft.

2. A timber saw including in combination a support comprising a circular casing, a spike projecting radially from said circular casing, a tubular casing extending radially from the circular casing in diametrically opposed relation with the spike, a pair of spaced brackets supporting the tubular casing for rotation about its longitudinal axis, handles carried by the upper ends of the brackets and extending parallel with and beyond the end of the tubular casing opposite the circular casing, a vertically adjustable support connected to the handles, a drive shaft extending through the tubular casing, a driven shaft mounted in the circular casing to rotate about an axis perpendicular to that of the drive shaft, drive means between the drive and driven shafts, said driven shaft extending through one side of the circular casing, an eccentric on the driven shaft, an arcuate guide on the circular casing, a frame connected to the eccentric and adapted to be supported on the arcuate guide, a crank on the driven shaft, a-saw carriage slidable on the frame, a saw blade mounted in the carriage, abow-shap'ed bracket connected to the saw carriage and engaging the saw blade at a point remote from the carriage, a connecting rod connecting the crank with the saw carriage. a power unit supported on the brackets and means to establish driving connection between the power unit and the drive shaft.

ULAND S. DILL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Germany Dec. 11, 1930 

